221313132021041 has 2 divisors, whose sum is σ = 221313132021042. Its totient is φ = 221313132021040.

The previous prime is 221313132021019. The next prime is 221313132021109. The reversal of 221313132021041 is 140120231313122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193456692494641 + 27856439526400 = 13908871^2 + 5277920^2 .

It is a cyclic number.

It is not a de Polignac number, because 221313132021041 - 2²² = 221313127826737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221313132021041.

It is not a weakly prime, because it can be changed into another prime (221313132021011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110656566010520 + 110656566010521.

It is an arithmetic number, because the mean of its divisors is an integer number (110656566010521).

Almost surely, 2^{221313132021041} is an apocalyptic number.

It is an amenable number.

221313132021041 is a deficient number, since it is larger than the sum of its proper divisors (1).

221313132021041 is an equidigital number, since it uses as much as digits as its factorization.

221313132021041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 221313132021041 its reverse (140120231313122), we get a palindrome (361433363334163).

The spelling of 221313132021041 in words is "two hundred twenty-one trillion, three hundred thirteen billion, one hundred thirty-two million, twenty-one thousand, forty-one".